Moscow ~ Cathedral of the Immaculate Conception of the Holy Virgin Mary ~ neo-Gothic church built 1901-11 ~ closed in 1938 and threatened with demolition, it was used after the war as a warehouse, then a hostel ~ Following the fall of communism in 1991, it returned to being a church in 1996. In 2002 it was elevated to the status of cathedral.
Notre Dame Cathedral, Paris France. My absolute favorite part of Paris was visiting this cathedral. I have a weakness for old architecture and stained glass windows. Visiting here was the third day in our two week college trip and I was on my way to coming down with pneumonia. Still, it was so worth it.